I read the article because it was shorter than the comments. It seems the problem here is predatory lending. Getting a loan for $500k and then being paid $380k because they took payments out sounds very much like a Ukranian Mafia loan shark technique I just read about in Jack Reacher - Blue Moon.
They’ll start mining landfill for metals and probably plastic soon enough. Air it out, wash it, get the metal and plastic, don’t worry about that other in the air/water, that’s a future poor person’s problem.
Google maps took me to the ordnance training entrance to Puckapunyal. A 10ft wire fence in the bush with a bunch of signs stating that past this point is a live atrillery training ground or something like that. Many warning of how likely you are to die if you continue.